* {
  padding: 0;
  margin: 0;
  /* color: #000; */
}

nav {
  width: 800px;
  height: 50px;
  background-color: #f5f5f5;
  margin: auto;
}
a {
  text-decoration: none;
}
.dz {
  width: 100px;
  height: 50px;
  float: left;
  line-height: 50px;
  margin-left: 20px;
}
.na {
  display: inline;
  width: 650px;
  height: 50px;
  float: right;
  line-height: 50px;
  text-align: center;
}
.na a {
  width: 75px;
  height: 50px;
  margin: 0 20px 0 0;
}


.as{
width: 800px;

background-color: aqua;
margin: auto;
text-align: center;
font-size: 24px;
line-height: 50px;
}
.as img{
  width: 20%;
  height: 50px;
  float: left;
}
.as .ad{
  float: right;
}
.as .gwc{
  margin: 0;
  width: 80px;
  height: 48px;
  font-size: 20px;
  /* display: block; */
  border: #ea2222 solid 1px;
}
lin a {
  color: #e4007f;
  font-size: 24px;
  width: 100px;
  height: 100px;
}
